http://code.jsoftware.com/wiki/Essays/Odometer
sper=: ] #.^:_1 i.@^~ Thanks, -- Raul On Mon, Nov 20, 2017 at 2:49 AM, 'Skip Cave' via Programming <[email protected]> wrote: > How to find the permutations of y objects taken x at a time? > > 3 sper 4 > > 0 1 2 > > 0 1 3 > > 0 2 1 > > 0 2 3 > > 0 3 1 > > 0 3 2 > > 1 0 2 > > 1 0 3 > > 1 2 0 > > 1 2 3 > > 1 3 0 > > 1 3 2 > > 2 0 1 > > 2 0 3 > > 2 1 0 > > 2 1 3 > > 2 3 0 > > 2 3 1 > > 3 0 1 > > 3 0 2 > > 3 1 0 > > 3 1 2 > > 3 2 0 > > 3 2 1 > > > 2 sper 4 > > 0 1 > > 0 2 > > 0 3 > > 1 0 > > 1 2 > > 1 3 > > 2 0 > > 2 1 > > 2 3 > > 3 0 > > 3 1 > > 3 2 > > 1 sper 4 > 0 > 1 > 2 > 3 > > Skip > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
